阿彌陀經疏 1.235

1.235

經曰：「是故，舍利弗！汝等皆當信受我語及諸佛所說」，次釋第三結勸也。是故者，結上之辭。皆當等者，勸勵之語也。汝當信我上來所說及六方諸佛之言。

The sūtra says: 'Therefore, Śāriputra, all of you should faithfully accept my words and what the buddhas have spoken.' Next, this is the third part of the commentary, concluding with an exhortation. 'Therefore' is a phrase concluding what came before. 'All of you should...' is an expression of encouragement. You should believe what I have stated above and the words of the buddhas of the six directions.